InnovAntennas

18485-0039 · LFA

50-LFA-4-LN 4-Element 50 MHz Yagi.

InnovAntennas 50-LFA-4-LN 4-Element 50 MHz Yagi was specifically designed for city use in noisy environments. This Loop-Fed model is optimized for front-to-back performance on relatively short boom of 11.15 ft. (3.40 meters), to reject as much local noise as possible. This antenna offers very good forward gain of 9.4 dBi (14.9 dBi at 10m above ground), and an exceptional 32 dB front-to-back rating, and SWR less than 1.4:1 across the 50-50.5 MHz range. The low profile LFA dipole achieves a significant reduction of noise, allowing clear reception of much weaker signals, a key component of operational improvements and success.

Gain 9.4 dBi / 7.25 dBd
Elements 4
Power 5 kW
Bands 6m

Datasheet // full specification

18485-0039

Core

Antenna Type LFA
Bands 6m
Gain 9.4 dBi / 7.25 dBd
Elements 4
F/B Ratio 31.87 dB
Power Rating 5 kW

Physical

Boom Length 3.4 m / 11.15 ft
Weight 4 kg / 8.82 lb
Wind Survival 115 mph (185.1 km/h)
Mast Diameter 50 mm

Electrical

Connector Direct/pigtail
Polarization Horizontal
Impedance 50 Ω
Beamwidth 83°

About this antenna

InnovAntennas 50-LFA-4-LN 4-Element 50 MHz Yagi was specifically designed for city use in noisy environments. This Loop-Fed model is optimized for front-to-back performance on relatively short boom of 11.15 ft. (3.40 meters), to reject as much local noise as possible. This antenna offers very good forward gain of 9.4 dBi (14.9 dBi at 10m above ground), and an exceptional 32 dB front-to-back rating, and SWR less than 1.4:1 across the 50-50.5 MHz range. The low profile LFA dipole achieves a significant reduction of noise, allowing clear reception of much weaker signals, a key component of operational improvements and success.

The 50-LFA-4-N includes a center mount boom to mast clamp for up to 2 inch masts (50mm) and is a sleek 1.77 sq. ft. wind load, making this beam ideal for typical 6 meter stations. It is also excellent for stacking to maximize gain, especially when available space restricts the use of a longer boom Yagi. It features a 1.25 in. (32mm) 16-guage square aluminum tubing boom for rugged reliability and low weight. This antenna is made with 1/2 inch (12.7mm) element center sections and 3/8 inch (9.525mm) for the outer elements. The antenna has fully insulated elements which will ensure continuous, high performance for many years to come, regardless of the weather conditions.

The introduction of the loop-shaped and phase-fed dipole achieves considerably fewer side lobes in the Yagi directional pattern. With less energy absorbed from the sides and from behind, these antennas are quieter than typical 4 element beams to achieve a higher 6 meter performance level. The 50 MHz Monoband LFA Yagis from G0KSC represent a significant advancement in the development of Yagi antennas. They provide a low-noise front-end for your radio, so you hear more signals. This compact 4-element 50 MHz LFA provides stunning performance across the important section of the 6m band, 50.0 - 50.5 MHz. With a direct 50 Ohm feedpoint, no matching losses and suppression of unwanted noise, InnovAntenna 50-LFA-4-N is hard to beat!

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